Root resection of endodontically treated teeth by Erbium:YAG laser radiation

Root resection was performed on endodontically treated extracted human teeth exposed to pulsed Er:YAG laser radiation at energy levels between 50 -90 mJ/pulse in wet and dry fields. The lased surfaces were examined by optical and scanning electron microscopy. The smooth, clean resected root surfaces, devoid of charring (in wet fields) indicate that the Er:YAG laser can replace the mechanical drills currently employed in endodontic periapical procedures. In addition, the laser would promote hemostasis and sterilization of the surgical field, resulting in diminished postoperative discomfort.

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